| Autor: |
Zeynep Tunalı, Kutay Sagdic, Fatih Inci, Bengi Özgün Öztürk |
| Přispěvatelé: |
Sağdıç, Kutay, İnci, Fatih |
| Rok vydání: |
2022 |
| Předmět: |
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| Zdroj: |
Reaction Chemistry & Engineering |
| ISSN: |
2058-9883 |
| Popis: |
In this study, nano-sized mesoporous carbon-supported HG2 and magnetic γ-Fe2O3 nanoparticles were encapsulated within calcium alginate gels using a one-pot procedure. Mesoporous carbon within the hydrophilic alginate shell provided hydrophobic compartments for hydrophobic olefinic substrates to conduct olefin metathesis reactions in water under an air atmosphere. Stable alginate/mesoporous carbon gel structures were obtained in the presence of a non-ionic surfactant (Tween20) with a homogenous distribution of HG2 in the gel matrix as confirmed by scanning electron microscopy (SEM) and energy dispersive X-ray (EDX) analysis. The HG2 catalyst encapsulated in the alginate/mesoporous carbon matrix exhibited an improved performance in water, and quantitative yields were obtained in ring-closing metathesis reactions of diethyl diallylmalonate even in tap-water under the air atmosphere with no significant ruthenium and iron leaching. The catalyst can be easily separated from the reaction mixture with the aid of a magnet, and it can be reused up to 7 times in RCM reactions. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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